足少阴之脉。起于小趾之下。斜趣足心（足心。涌泉穴分也。素问曰。少阴之根。起于
涌泉
穴也）。出然谷之下（然谷所居。素问云。刺足下包络中脉血不出为肿）。循内踝之后（太溪穴
分也）。别入根中（大钟在此跟中。足少阴之络。别入太阳之络）。以上 内（复溜在内踝上。
同身中之二寸 分中）。出 内廉（阴谷居此 内廉）。上股内后廉。贯脊属肾（足少阴肾之经
故其脉属于肾）。络膀胱（膀胱为肾之维。故脉络膀胱）。其直者。从肾上贯肝膈。入脉中
循喉咙挟舌本。其支者。从肺出络心。注胸中（足少阴自此交入手心主）。是动则病（足少
阴常少血多气。今气先病。是谓是动也）。饥不欲食。面黑如炭色（一作地色。素问曰。所谓
面黑如地者。和气内夺。故变于色也）。咳唾则有血（素问所谓咳则有血者。阳脉伤也。阳气
未盛于上而脉满。满则咳。故血见于鼻也）。喝喝而喘（以其脉入肺中。循喉咙故尔）。坐而
欲起。目KT KT 无所见（素问所谓不能久立久坐。则目KT KT 无所见者。阴阳不定。未有主也。
秋气始至。微霜始下。而方杀万物。阴阳内夺。故目KT KT 无所见也）。心悬若饥状。气不足
则善恐。心惕惕若人将捕之（素问。所谓善恐如人将捕之者。秋气方盛。万物未有毕去。阴
气少。阳气入。阴阳相搏故恐也）。是谓骨厥。是主肾（肾主骨。骨厥则肾气逆也）。所生病
者（血受病于气。是气之所生也。故云所生病也）。口热舌干。咽肿上气。嗌干及痛。烦心
心痛。黄胆。肠 。脊股内后廉痛。痿厥嗜卧（人冒暑热之毒。舍于肾。肾乃小藏也。小
不胜大。则骨与髓虚。故足不载身。而痿厥生焉。痿则无力。故嗜卧也）。足心常热而痛。
渐至足下重。如不能举。灸则强食生肉。缓带被发。大杖重履而步。盛者寸口大再倍于人迎
虚者寸口反小于人迎也。
足少阴之别。名曰大钟。当踝后绕跟。别走太阳。其别者。并经上走于心包下。外贯腰
脊。其病气逆。则烦闷。实则闭癃。虚则腰痛。取之所别也。
足少阴之筋起于小趾之下。并太阴之筋斜走内踝之下。结于踵。与太阳之筋合而上结于
内辅
之下。并太阳之筋而上循阴股。结于阴器。循脊内侠膂上至项。结于枕骨。与足太阳之筋合
其病足下转筋。及所过而结者皆痛及转筋病。在此者主痫螈及痉。在外者不能俯。在内者
不能仰。故阳病者。腰反折不能俯。阴病者。不能仰。治在燔针劫刺。以知为数。以痛为输
在内者熨引饮药发数。甚者死不治。名曰仲秋痹也。
邪客于足少阴之络。令人卒心痛。暴胀。胸胁支满无积者。刺足下中央之脉各三 。凡
六刺
立已。左刺右。右刺左。嗌中肿不能内唾。时不能出唾者。刺然谷之前。出血立已。左右互
刺。
肾病者。腹大。胫肿。喘咳。身重寝汗出。憎风。虚则胸中痛。大腹小腹痛。清厥。意
不乐。取其经少阴少阳血者。
肾热病者。先腰痛 酸。苦渴数饮。身热。热争。则项痛而强。 寒且酸。足下热不欲
言。
其逆则项痛消消澹澹然。戊己甚。壬癸大汗。气逆则戊己死。刺足少阴太阳。肾热病者。颐
先赤。故热病先身重骨痛耳聋好瞑。刺足少阴。病甚为五十九刺。
足少阴肾经。从足走胸中。长六尺五寸。左右共一丈三尺。凡五十四穴。
涌泉二穴。然谷二穴。太溪二穴。大钟二穴。照海二穴。水泉二穴。复溜二穴。交信二
穴。
筑宾二穴。阴谷二穴。横骨二穴。大赫二穴。气穴二穴。四满二穴。中注二穴。肓 二穴。
商曲二穴。石关二穴。阴都二穴。通谷二穴。幽门二穴。步廊二穴。神封二穴。灵墟二穴。
神藏二穴。 中二穴。 府二穴。
足少阴肾经的经脉，起始于小趾下方。斜行进入足心（足心部位，即涌泉穴所在处。《素问》说：少阴经的根本，起始于涌泉穴）。出于然谷穴下方（然谷穴所在的位置，《素问》说：针刺足下包络中的脉，若血液不出则会导致肿胀）。沿内踝后方行走（太溪穴所在处）。分支进入脚跟中（大钟穴位于此脚跟中，足少阴的络脉，别入足太阳的络脉）。上行至内踝上（复溜穴在内踝上方，同身寸的二寸分界处）。出于内踝内侧（阴谷穴位于此内踝内侧）。沿大腿内侧后缘上行，贯穿脊柱，归属于肾（足少阴是肾的经脉，所以其脉属于肾）。联络膀胱（膀胱是肾的表里配合脏腑，所以脉络联系膀胱）。其直行部分，从肾脏向上贯穿肝脏和膈肌，进入胸腔，沿喉咙，夹持舌根。其分支，从肺脏分出，联络心脏，注入胸中（足少阴经在此处交入手厥阴心包经）。
当经脉发生变动时会产生病症（足少阴经通常血少气多，现在气先发病，这称为“是动病”）。表现为饥饿但不想进食，面色黑如炭色（另一种说法是黑如地色。《素问》说：所谓面色黑如大地，是因为和气被内部剥夺，所以颜色发生变化）。咳嗽吐唾沫中带血（《素问》所说的咳而有血，是因为阳脉受伤。阳气未在上部旺盛而脉象满实，满实则咳，所以血液见于鼻部）。喘息有声（因为其经脉进入肺中，沿喉咙行走的缘故）。坐着想要站起来（因为阴阳不调定，没有主宰。秋气刚起，微霜初降，万物正在凋零，阴阳内部被剥夺，所以眼睛昏花看不清）。心中悬空好像饥饿的感觉，气不足就容易恐惧，心里惕惕不安好像有人要抓捕自己（《素问》说：所谓容易恐惧像有人要抓捕自己，是因为秋气正盛，万物尚未完全离去，阴气少，阳气入，阴阳相搏所以产生恐惧）。这称为骨厥。本经主要主管肾脏（肾主骨，骨厥则是肾气逆乱）。所生的疾病（血受气的影响而生病，这是气所生成的病，所以叫“所生病”）。表现为口热舌干，咽喉肿痛，气逆上冲，咽干及疼痛，心烦心痛，黄疸，肠鸣泄泻，脊背和大腿内侧后缘疼痛，痿证厥冷嗜睡（人冒受暑热之毒，邪气舍于肾，肾是小藏。小不胜大，则骨骼与骨髓空虚，所以脚不能承载身体，从而产生痿厥。痿则无力，所以嗜睡）。足心常发热且疼痛，逐渐发展到足下沉重，好像抬不起来。治疗可用艾灸促进饮食生长肌肉，放松腰带披散头发，拄着粗大的手杖穿着厚重的鞋子行走。实证时寸口脉搏比人迎脉搏大二倍；虚证时寸口脉搏反而小于人迎脉搏。
足少阴经的别络，名叫大钟，位于脚踝后方绕跟骨，别走足太阳经。其另一支，并本经上行至心包下方，外贯腰脊。其病症为气逆则烦闷，实证则小便闭癃，虚证则腰痛。取用该别络穴位进行治疗。
足少阴经的筋，起始于小趾下方，与足太阴经的筋一起斜行走向内踝下方，结聚于脚跟，与足太阳经的筋结合而上行至内辅骨下方，并与足太阳经的筋一起沿大腿内侧上行，结聚于阴器，沿脊柱内部夹持两旁的肌肉上行至项部，结聚于枕骨，与足太阳经的筋会合。其病症为足底转筋，以及经过和结聚的部位都疼痛并伴有转筋。病在里的主要症状是癫痫抽搐和痉病；病在外的不能俯身，病在里的不能仰头。所以阳病者，腰部反折不能俯身；阴病者，不能仰头。治疗采用燔针劫刺的方法，以见效为度，以痛点为腧穴。病在里的用熨法、导引、服药发汗多次。病情严重的死亡，无法治愈。这称为仲秋痹。
邪气客居在足少阴经的络脉，使人突然心痛，暴胀，胸胁支撑胀满但没有积滞的。针刺足下中央的脉各三次，共六刺，立即痊愈。左病右刺，右病左刺。咽喉中间肿胀不能吞咽唾液，时常不能吐出唾液的，刺然谷穴前方，出血后立即痊愈。左右互刺。
肾脏患病，腹部肿大，小腿肿胀，喘咳，身体沉重，睡着出汗，怕风。虚证则胸中痛，大腹和小腹痛，清厥，心情不乐。取用少阴经和少阳经的血分穴位。
肾热病患者，先出现腰痛和酸软，口渴想多喝水，身体发热。热邪与正气相争，则颈项疼痛且僵硬，恶寒且酸软，足下发热不想说话。如果气机逆乱，则颈项疼痛，心中动荡不安。戊己日病情加重，壬癸日大汗出。气逆则在戊己日死亡。针刺足少阴和足太阳经。肾热病患者，颐部先发红。所以热病先出现身体重、骨痛、耳聋、喜欢闭眼。针刺足少阴经。病重的采用五十九刺法。
足少阴肾经，从足部走向胸中，长六尺五寸，左右共一丈三尺。共有五十四穴。
涌泉二穴，然谷二穴，太溪二穴，大钟二穴，照海二穴，水泉二穴，复溜二穴，交信二穴，筑宾二穴，阴谷二穴，横骨二穴，大赫二穴，气穴二穴，四满二穴，中注二穴，肓俞二穴，商曲二穴，石关二穴，阴都二穴，通谷二穴，幽门二穴，步廊二穴，神封二穴，灵墟二穴，神藏二穴，彧中二穴，府舍二穴。
The meridian of Foot-Shaoyin Kidney originates from below the little toe. It slants into the sole of the foot (the sole, where Yongquan [KI-1] is located. *Suwen* states: The root of Shaoyin starts at Yongquan). It emerges below Ran Gu [KI-2] (the location of Ran Gu; *Suwen* says: if blood does not flow out after needling the vessels in the pericardium of the sole, swelling will occur). It follows behind the medial malleolus (where Tai Xi [KI-3] is located). A branch enters the heel (Da Zhong [KI-4] is here in the heel; the collateral of Foot-Shaoyin diverges to enter the collateral of Foot-Taiyang). It ascends above the medial malleolus (Fu Liu [KI-7] is above the medial malleolus, within the two-cun mark of the body inch). It emerges along the medial margin of the medial malleolus (Yin Gu [KI-10] is located here on the medial margin). It ascends along the posterior medial aspect of the thigh, penetrates the spine, and connects with the Kidney (as the meridian of Foot-Shaoyin belongs to the Kidney, its vessel connects with the Kidney). It links with the Bladder (the Bladder is the exterior-interior partner of the Kidney, so its vessel connects with the Bladder). Its straight branch rises from the Kidney, passes through the Liver and Diaphragm, enters the chest, follows the throat, and flanks the base of the tongue. Its branch emerges from the Lung, connects with the Heart, and pours into the chest (Foot-Shaoyin intersects with Hand-Jueyin Pericardium here).
When the meridian undergoes pathological changes ("Shi Dong" diseases), symptoms include: hunger without desire to eat; complexion as black as charcoal (or earth color; *Suwen* says: a complexion as black as earth indicates the internal loss of harmonious Qi, causing color change); coughing and spitting blood (*Suwen* states that coughing with blood results from injury to Yang vessels; when Yang Qi is not yet abundant above but the vessels are full, fullness causes coughing, so blood appears in the nose); panting with sound (because the meridian enters the Lung and follows the throat); sitting up wanting to stand (due to unstable Yin and Yang lacking a master; early autumn brings slight frost and the withering of all things, leading to internal depletion of Yin and Yang, causing blurred vision); heart feeling empty like hunger; Qi deficiency leading to fearfulness, with a startled heart as if someone were about to capture one (*Suwen* says: fearing as if being chased occurs because in peak autumn, Yin Qi is scant while Yang Qi enters, and their struggle causes fear). This is called "Gu Jue" (Bone Reversal). This meridian primarily governs the Kidney (Kidney governs bones; Gu Jue implies rebellious Kidney Qi).
"Suo Sheng Bing" (Diseases generated by the meridian) include: heat in the mouth and dry tongue; swollen throat with upward rushing Qi, dry and painful pharynx; vexation and heart pain; jaundice; intestinal rumbling and diarrhea; pain along the posterior medial aspect of the spine and thigh; Wei syndrome with cold extremities and drowsiness (when one contracts summer-heat toxicity which lodges in the Kidney, the small organ cannot overcome the large pathogen, leading to emptiness of bones and marrow, so the feet cannot support the body, generating Wei Jue; weakness leads to drowsiness); constant heat and pain in the sole of the foot, gradually progressing to heaviness in the feet as if unable to lift them. Treatment involves moxibustion to strengthen appetite and generate flesh, loosening belts, letting hair down, and walking with a thick staff and heavy shoes. In excess conditions, the Cun Kou pulse is twice as large as the Ren Ying pulse; in deficiency conditions, the Cun Kou pulse is smaller than the Ren Ying pulse.
The collateral of Foot-Shaoyin is named Da Zhong. It is located behind the ankle, winding around the heel, and diverging to Foot-Taiyang. Another branch runs along the main meridian upward to the lower Pericardium, externally penetrating the waist and spine. Pathological manifestations include: rebellious Qi causing irritability; excess causing urinary retention; deficiency causing lower back pain. Treat by selecting the collateral point.
The sinews of Foot-Shaoyin originate from below the little toe, running obliquely with the sinews of Foot-Taiyin to the lower medial malleolus, knotting at the calcaneus, combining with the sinews of Foot-Taiyang to ascend and knot below the medial condyle of the tibia. They run up the medial thigh with the sinews of Foot-Taiyang, knotting at the genitalia, following the interior of the spine alongside the paravertebral muscles to the nape, knotting at the occiput, and combining with the sinews of Foot-Taiyang. Pathologies include: twitching/cramping of the sole, and pain/twitching at sites of passage and knotting. Internal pathology manifests as epilepsy and spasms; external pathology prevents flexion. Internal pathology prevents extension. Thus, Yang pathology causes opisthotonos preventing flexion; Yin pathology prevents extension. Treatment uses burning needles (fire needles) for rapid puncture, taking efficacy as the count and pain points as acupoints. Internal pathology requires warming therapy, guidance exercises, and herbal medicine inducing sweating multiple times. Severe cases are fatal and untreatable. This is called "Zhong Qiu Bi" (Mid-Autumn Obstruction).
Evil lodging in the collaterals of Foot-Shaoyin causes sudden heart pain, acute distension, and fullness/stiffness in the chest and hypochondrium without accumulation. Puncture the central vessels of the sole three times on each side, six punctures total, for immediate relief. Use left-right cross-puncturing. For swelling in the throat preventing swallowing or expectoration of saliva, puncture anterior to Ran Gu until bleeding occurs for immediate relief. Use bilateral cross-puncturing.
Kidney disease presents with abdominal distension, leg edema, wheezing/cough, heavy body, nocturnal sweating, and aversion to wind. Deficiency presents with chest pain, lower abdominal pain, cold extremities, and unhappiness. Treat by selecting Blood points of Foot-Shaoyin and Foot-Shaoyang meridians.
Kidney Heat Disease begins with lower back pain and soreness, bitter thirst with frequent drinking, and fever. When heat struggles with healthy Qi, neck pain and stiffness occur, accompanied by chills and soreness, hot soles, and reluctance to speak. If Qi rebels, neck pain and palpitations occur. Symptoms worsen on Wu/Ji days, with profuse sweating on Ren/Gui days. Qi rebellion leads to death on Wu/Ji days. Puncture Foot-Shaoyin and Foot-Taiyang. In Kidney Heat Disease, the chin turns red first. Generally, heat diseases begin with heaviness, bone pain, deafness, and desire to close eyes. Puncture Foot-Shaoyin. For severe cases, use the 59-point puncture method.
The Foot-Shaoyin Kidney Meridian travels from the foot to the chest, measuring 6 chi 5 cun, totaling 1 zhang 3 chi bilaterally. It contains 54 acupoints.
Yongquan (2), Ran Gu (2), Tai Xi (2), Da Zhong (2), Zhao Hai (2), Shui Quan (2), Fu Liu (2), Jiao Xin (2), Zhu Bin (2), Yin Gu (2), Heng Gu (2), Da He (2), Qi Xue (2), Si Man (2), Zhong Zhu (2), Huang Shu (2), Shang Qu (2), Shi Guan (2), Yin Du (2), Tong Gu (2), You Men (2), Bu Lang (2), Shen Feng (2), Ling Xu (2), Shen Zang (2), Yu Zhong (2), Fu She (2).